Since the retirement of pirut in F9, fedora users have no way of making any use of the several installation CDs or the DVD media, there is no package manager front end that support media repos.
The current solution is to copy the rpm files and make a locale repo, which is not a simple task for a typical desktop user.

This functionality adds the ability in PackageKit and Yumex to utilize installation media (DVD and CDs) and prompt the use insert it which helps people with no internet connection and save bandwidth for those who have internet connection.